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Cheap flights from St. Louis to Canada from C$ 149

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Canada departing on 25/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Canada

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:43 p.m. - 11:43 a.m.
STL
-
YYZ
19h 00m2 stops
Multiple Airlines Logo
7:10 a.m. - 10:34 p.m.
YYZ
-
STL
16h 24m1 stop
C$ 356Multiple Airlines
Thu, 8 Jan - Thu, 15 Jan
Multiple Airlines Logo
1:07 p.m. - 6:20 a.m.
STL
-
YYZ
16h 13m1 stop
Multiple Airlines Logo
3:40 p.m. - 6:51 a.m.
YYZ
-
STL
16h 11m2 stops
C$ 379Multiple Airlines
Mon, 12 Jan - Tue, 13 Jan
Air Canada Logo
4:05 p.m. - 12:41 a.m.
STL
-
YHZ
6h 36m1 stop
Air Canada Logo
9:00 a.m. - 3:29 p.m.
YHZ
-
STL
8h 29m1 stop
C$ 458Air Canada
Sat, 17 Jan - Wed, 21 Jan
Delta Logo
12:00 p.m. - 11:27 p.m.
STL
-
YHZ
9h 27m1 stop
Delta Logo
6:40 a.m. - 11:54 a.m.
YHZ
-
STL
7h 14m1 stop
C$ 459Delta
Tue, 9 Jun - Wed, 17 Jun
Air Canada Logo
4:05 p.m. - 12:41 a.m.
STL
-
YHZ
6h 36m1 stop
Air Canada Logo
5:35 a.m. - 3:29 p.m.
YHZ
-
STL
11h 54m2 stops
C$ 469Air Canada
Sat, 17 Jan - Wed, 21 Jan
Delta Logo
6:45 a.m. - 11:27 p.m.
STL
-
YHZ
14h 42m2 stops
Delta Logo
6:40 a.m. - 11:54 a.m.
YHZ
-
STL
7h 14m1 stop
C$ 473Delta
Tue, 9 Jun - Wed, 17 Jun
American Airlines Logo
6:44 p.m. - 12:48 p.m.
STL
-
YYC
19h 04m1 stop
American Airlines Logo
1:40 p.m. - 1:09 p.m.
YYC
-
STL
22h 29m1 stop
C$ 479American Airlines
Mon, 12 Jan - Fri, 16 Jan
United Airlines Logo
4:49 p.m. - 2:31 p.m.
STL
-
YHZ
19h 42m2 stops
United Airlines Logo
3:15 p.m. - 10:58 p.m.
YHZ
-
STL
9h 43m2 stops
C$ 480United Airlines
Sat, 17 Jan - Wed, 21 Jan
United Airlines Logo
7:00 a.m. - 2:31 p.m.
STL
-
YHZ
5h 31m1 stop
United Airlines Logo
10:30 a.m. - 5:25 p.m.
YHZ
-
STL
8h 55m1 stop
C$ 563United Airlines
Sat, 24 Jan - Sat, 31 Jan
American Airlines Logo
6:00 a.m. - 3:08 p.m.
STL
-
YUL
8h 08m1 stop
American Airlines Logo
3:50 p.m. - 10:20 a.m.
YUL
-
STL
19h 30m1 stop
C$ 654American Airlines
Wed, 28 Jan - Sun, 1 Feb

American Airlines flights from St. Louis to Canada

Our best American Airlines deals on St. Louis to Canada flight tickets
American Airlines
7 Feb
STL6:43 p.m.Lambert-St Louis
15h 10m
1 stop
YYZ10:53 a.m.Toronto Pearson Intl
9 Feb
YYZ7:04 p.m.Toronto Pearson Intl
16h 16m
1 stop
STL10:20 a.m.Lambert-St Louis
C$ 445
Find similar
American Airlines
14 Feb
STL10:04 a.m.Lambert-St Louis
10h 25m
1 stop
YYZ9:29 p.m.Toronto Pearson Intl
21 Feb
YYZ6:00 a.m.Toronto Pearson Intl
8h 56m
1 stop
STL1:56 p.m.Lambert-St Louis
C$ 484
Find similar
American Airlines
20 Jan
STL3:20 p.m.Lambert-St Louis
22h 28m
1 stop
YYC12:48 p.m.Calgary
22 Jan
YYC1:40 p.m.Calgary
19h 40m
1 stop
STL10:20 a.m.Lambert-St Louis
C$ 563
Find similar

Air Canada flights from St. Louis to Canada

Our best Air Canada deals on St. Louis to Canada flight tickets
Air Canada
17 Jan
STL4:05 p.m.Lambert-St Louis
6h 36m
1 stop
YHZ12:41 a.m.Halifax Intl
21 Jan
YHZ9:00 a.m.Halifax Intl
8h 29m
1 stop
STL3:29 p.m.Lambert-St Louis
C$ 458
Find similar
Air Canada
17 Jan
STL4:05 p.m.Lambert-St Louis
6h 36m
1 stop
YHZ12:41 a.m.Halifax Intl
21 Jan
YHZ5:35 a.m.Halifax Intl
11h 54m
2 stops
STL3:29 p.m.Lambert-St Louis
C$ 469
Find similar
Air Canada
17 Jan
STL4:05 p.m.Lambert-St Louis
15h 21m
2 stops
YHZ9:26 a.m.Halifax Intl
21 Jan
YHZ6:55 a.m.Halifax Intl
10h 34m
2 stops
STL3:29 p.m.Lambert-St Louis
C$ 523
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Canada that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 11 December 2025.
Use the filters below to find and compare flights from St. Louis to Canada that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 8/1

3:43 p.m.-11:43 a.m.

2 stops19h 00m

Toronto Pearson Intl

Thu 15/1

7:10 a.m.-10:34 p.m.

1 stop16h 24m

C$ 356

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 12/1

1:07 p.m.-6:20 a.m.

1 stop16h 13m

Toronto Pearson Intl

Tue 13/1

3:40 p.m.-6:51 a.m.

2 stops16h 11m

C$ 379

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Sat 17/1

4:05 p.m.-12:41 a.m.

1 stop6h 36m

Halifax Intl

Wed 21/1

9:00 a.m.-3:29 p.m.

1 stop8h 29m

C$ 458

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Tue 9/6

12:00 p.m.-11:27 p.m.

1 stop9h 27m

Halifax Intl

Wed 17/6

6:40 a.m.-11:54 a.m.

1 stop7h 14m

C$ 459

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Sat 17/1

4:05 p.m.-12:41 a.m.

1 stop6h 36m

Halifax Intl

Wed 21/1

5:35 a.m.-3:29 p.m.

2 stops11h 54m

C$ 469

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Tue 9/6

6:45 a.m.-11:27 p.m.

2 stops14h 42m

Halifax Intl

Wed 17/6

6:40 a.m.-11:54 a.m.

1 stop7h 14m

C$ 473

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Mon 12/1

6:44 p.m.-12:48 p.m.

1 stop19h 04m

Calgary

Fri 16/1

1:40 p.m.-1:09 p.m.

1 stop22h 29m

C$ 479

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Sat 17/1

4:49 p.m.-2:31 p.m.

2 stops19h 42m

Halifax Intl

Wed 21/1

3:15 p.m.-10:58 p.m.

2 stops9h 43m

C$ 480

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Sat 24/1

7:00 a.m.-2:31 p.m.

1 stop5h 31m

Halifax Intl

Sat 31/1

10:30 a.m.-5:25 p.m.

1 stop8h 55m

C$ 563

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 28/1

6:00 a.m.-3:08 p.m.

1 stop8h 08m

Montreal Pierre Elliott Trudeau Intl

Sun 1/2

3:50 p.m.-10:20 a.m.

1 stop19h 30m

C$ 654

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Canada from

How to get the cheapest flight ticket from St. Louis to Canada

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Canada?

In general, April is the cheapest month to fly from St. Louis to Canada. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 433. If you’re not able to fly to Canada in April, then June is your next best option. Flight prices from St. Louis to Canada during June average around C$ 541.

What is the cheapest day to depart on your flight to Canada?

Our data shows that Friday is the least expensive day to fly to Canada. Tickets to fly out on this day can be as low as C$ 579. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around C$ 897. These prices are subject to change though, so be sure to set up a Price Alert for flights to Canada.

What is the cheapest time of day to depart on your flight to Canada?

According to our data, the cheapest time of day to fly to Canada is at noon. momondo users have found flights departing from St. Louis to Canada at noon for as low as C$ 591. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Canada, so prices are often more expensive at around C$ 766 per ticket.

What is the cheapest Lambert-St Louis to Canada flight route?

Fly from Lambert-St Louis to Toronto Pearson Intl for the best Lambert-St Louis - Canada flight prices

How far in advance should I book a flight to Canada?

You are more likely to see cheaper flights to Canada from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Canada for around C$ 705 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Canada from St. Louis for as low as C$ 305 on momondo.

What cabin class options are available on Lambert-St Louis to Canada flights?

There is only 1 cabin class available to choose from on Lambert-St Louis to Canada flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Canada flights?

You could potentially save up to 44% on your flight if you consider stops on a St. Louis to Canada flight.

Cheap St. Louis to Canada flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Canada

Fastest flight time

1h 57m

Direct flights

Every day

Airports in Canada

513 airports
The fastest flight from St. Louis to Canada takes 1h 57m
Direct flights go from St. Louis to Canada every day.
There are 513 airports in Canada. From St. Louis there are direct flights to Montreal Pierre Elliott Trudeau Intl (YUL), Toronto Pearson Intl (YYZ).
Search flight deals

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Canada?

    Prices for flights from Lambert-St Louis Airport to Canada are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Canada?

  • How old do you have to be to fly from Lambert-St Louis Airport to Canada?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Canada.

  • What documentation or ID do you need to fly to Canada?

    The travel and health documents you'll need for your trip to Canada may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Canada. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from St. Louis to Canada?

Best airlines flying from St. Louis to Canada

Compare and see reviews for airlines that fly from St. Louis to Canada with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom C$ 301Free CancellationRating
7.1
10,516 reviews
Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Canada?

It is quick and easy to find St. Louis to Canada flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Canada that suits you.

Can I find flights from St. Louis to Canada with flexible booking policies on momondo?

Yes. All flights to Canada from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Canada?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Canada.

I’m not ready to book a flight from St. Louis to Canada right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Canada now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Canada and let you know when they change.

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Find better results for your trip to Canada

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